Summary

• With 72 currently listed for sale near Miami, FL and an average price of $22,247.00, 5.6% of 2018 GMC Yukons XLs for sale on CarGurus are rated as good or great deals.

• Favorably reviewed: Owners rated the 2018 GMC Yukon XL 5 / 5 stars.

• 51.4% of 2018 Yukon XL models on CarGurus are accident free.

Why it stands out

The 2018 GMC Yukon XL stands out as a big, truck-based SUV built around space and capability. It offers the kind of long-wheelbase packaging that gives passengers more room in the third row and adds a great deal more cargo space behind it, which is a major part of its appeal for families who need to carry people and luggage at the same time. In this generation, the Yukon XL also keeps a traditional solid rear axle and a higher cargo-area floor than car-based crossovers, reinforcing its old-school, utility-first character.

For 2018, the Yukon XL’s standard 5.3L V8 engine, eight-passenger seating, 18-inch aluminum wheels, eight-inch infotainment screen, three-zone climate control, Bose audio system, and OnStar technology make it a well-equipped large SUV even in base form. The SLT adds conveniences such as a hands-free power liftgate, power adjustable pedals, a locking rear differential, heated and ventilated front seats, heated second-row seats with power-folding functionality, and leather seating surfaces. The Denali is the most upscale version in this model year, with a 6.2L V8 engine, magnetic ride control suspension, 20-inch aluminum wheels, an upgraded Bose audio system, and a chrome grille, while available features like navigation, a rear-seat entertainment system, and adaptive cruise control broaden its luxury and long-trip appeal.

That combination of size, comfort, and available upscale equipment is what makes the 2018 GMC Yukon XL distinctive. It is especially attractive to buyers who want a spacious three-row SUV that feels substantial and can be configured for family duty or more premium use. Its main drawbacks are the ones that come with the formula: poor fuel economy, truck-like handling compared with car-based crossovers, and older technology in some versions.

Other model years to consider

• 2023 GMC Yukon XL

  • Average price: $53,596.00
  • Good/great deal percentage: 20.8%
  • User rating: 5 / 5
  • Total listings: 154

• 2024 GMC Yukon XL

  • Average price: $59,097.00
  • Good/great deal percentage: 20.4%
  • Total listings: 152

• 2022 GMC Yukon XL

  • Average price: $44,327.00
  • Good/great deal percentage: 16.0%
  • User rating: 4.8 / 5
  • Total listings: 162

This analysis is based on CarGurus' proprietary market data from August 11, 2026, CarGurus experts' opinions, and generative AI.